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Sand dunes coursework Introduction - Hayling Island

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Introduction

Geography Coursework Katrina Gillett Question Assess the impact of human activity on the sand dunes and the management that could be taken to prevent further erosion. Hypothesis I think that the more human activity within the area the more erosion of the sand dunes, so more management will be needed to protect the area. 1. What threats face the sand dunes at Gunner Point, Hayling Island? * Human * Recreational * Physical * Sea 2. What impact has recreation (visitors) had on the sand dunes? * Dogs * Walking * Golf * Blow out * Footpaths * Tasks use > Footpath erosion (table 2...task 3.1) > Blow out dune (table 3...task 3.2) > Transect (recording sheet 1...sand dunes) 3. What management systems do they have in place? * Boardwalk * Shingle beach * Fencing * Bins * What other management strategies could be beneficial? * Tasks use > Litter survey (Task 3.3...table 4) > Possible management strategies (Task 4...Map 3) Introduction to Sand Dunes Sand dunes are important ecosystems. They are formed on large sandy shores, where the sand is able to dry out and then blown inland. There are very few requirements needed to make sand dunes, but over time these make up a succession (Fig 2 and Fig ...read more.

Middle

I have split my investigation into three primary questions to make it more thorough (See Fig 1): Embryo Dunes * Youngest of all dunes. * Generally has a pH of 8-9. * Sea couch grass grows here. * About 80% exposed sand. * High salinity Fore Dunes/ Mobile dunes * Slightly higher than embryo dunes * Only about 20% exposed sand * Marram Grass is dominant * High salinity Slacks * Low lying depressions * Between fore dunes and main dunes. * Wild strawberries, buttercup and violets grow here. Fixed Dunes * Soil has started to change brown * Drought is a problem and nutrients in short supply * Larger animals: Rabbits * Less than 10% exposed sand Climax Community * Main vegetation: pine, birch, beech or oak woodland. * 0% exposed sand Route to Enquiry Question Nature/Purpose of Information Method of Data collection/ Sampling Evaluation: Problems/ Limitations of Data Solutions/ Improvements Primary/ Secondary Data Evidence/ Figure Reference 2 Sand Dunes Transect To show the biotic, abiotic and human activity on the sand dunes. Every 3 metres from our starting transect pole, we took a 0.5m quadrat and randomly threw it within the area, therefore making the results less biased. ...read more.

Conclusion

Primary Figure 6 Figure 7 2/3 D.A.F.O.R Abundance Scale Showed at each site the plant species and how much of each species there were ranging from dominant-rare. It partially shows where some erosion may have taken place. At each of our sites we placed a quadrat down and using a plant guide we named the types of plant within that area and whether there was a lot or very little amount of each one, using the letters: D-dominant, A-abundant, F-frequent, O-occasional, R-rare Not all the plants we found, we could name, as they were not listed on the plant guide. We gave the plants we didn't know a different letter i.e. X Primary/ Secondary Figure 11 Figure 12 Figure 35 Figure22 2/3 Interrupted Belt Transect Showed at what site each plant was located At each of our sites we placed a quadrat, and using a plant guide we named the types of plant, and at what sites they were located along our transect line. We couldn't always name the plants, as we couldn't find them on our guide to plants. The plants that we didn't know we gave a letter, to show that we had found the plant, but didn't know what it was. I.e. X Primary/ Secondary Figure 34 Katrina Gillett ...read more.

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